摘要
为了精肉或鲜鱼的保鲜对立式制冷陈列柜进行设计。由于该陈列柜的柜口敞开,虽然有风幕形成的屏障,但外界热空气的侵入仍引起许多额外的负荷。在考虑外界热空气引起的额外负荷基础上,进行热负荷计算。在陈列柜的热负荷计算部分可以看出,风幕负荷成为主要的负荷,占总负荷的大部分。根据计算所得的热负荷对设备进行选型计算,并选出适用的设备型号;对蒸发器进行了设计计算,并考虑了蒸发器的结霜问题。这样就能将符合要求的陈列柜设计成形。
The vertical refrigerated display cabinet is designed to store fresh meat or fish. For the door of the display case is open, the air curtain can form protective screen, but the air intruding into the cabinet still causes a lot of extra load. The refrigeration load is calculated by considering the extra load. From the calculation of the refrigeration load, it can be seen that the load of the air curtain is the primary part. The equipment can be calculated and chosen based on the load, and the evaporator is designed and the frosting is also taken into account. So, the design of the vertical display case meeting the requirement is finished.
出处
《制冷技术》
2012年第2期62-65,共5页
Chinese Journal of Refrigeration Technology
关键词
保鲜
制冷负荷
制冷系统
风幕
结霜
Freshing
Refrigeration load
Refrigeration system
Air curtain
Frosting
